Purchased last January. Used for remote meetings. There are scratches from use. 【High Sound Quality】 The EarFun Air 2 is equipped with LDAC decoding, which has received Hi-Res certification, providing a high-quality music experience. 【Long Playback Time】 It can play for up to 40 hours, so you can use it for extended periods with peace of mind. You can enjoy it even longer by using the charging case. 【Comfortable Fit】 With noise-canceling technology using four microphones, it provides clear calls and a great music experience. With an IPX7 waterproof rating, you can use it without worrying about sweat or rain. - Brand: EarFun - Model Name: Air 2 - Bluetooth Version: 5.3 - Waterproof Rating: IPX7 - Battery Life: Up to 40 hours - Noise Canceling Function: 4-microphone noise canceling - Charging Method: Supports wireless charging - High-Resolution Audio Support: Supports LDAC Thank you for viewing.